title: FDA notifications. Norvir label changes approved.
mesh_terms: D000328:Adult; D018592:Cross-Over Studies; D004348:Drug Labeling / Q000331:legislation & jurisprudence*; D017320:HIV Protease Inhibitors / Q000009:adverse effects; D006801:Humans; D010919:Placebos; D016032:Randomized Controlled Trials as Topic; D019438:Ritonavir / Q000009:adverse effects; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D017320:HIV Protease Inhibitors; D010919:Placebos; D019438:Ritonavir